Analysis of Dynamic Spectrum Access Gaining Devices for Wireless Sensor Network: A Survey
Megha Thakre, N. S. Sahare · IJARCCE · 2015
Cognitive radio is a communication technology which is designed to serve users to make use of the available bandwidth in a greatest possible amount.Though more research has been done on spectrum sensing and allocation problems, cognitive radio has recently attracted a lot of research interest.This paper shows the concept of cognitive radio networks (CRNs).Cognitive radio is an intelligent form of wireless communication.It consists of a transceiver which detects the channels which are in use for communication or which are not in use.It can automatically search vacant channels in a wireless spectrum.The cognitive radio depends on spectrum allocation and channel selection.This paper gives the survey on various methods for cognitive radio.